Finding the Third Proportional to 8,436,059.25 and 12,598,906.88

Step by Step Solution

1. Step 1: Write the proportion equation
   8,436,059.25 : 12,598,906.88 = 12,598,906.88 : x
2. Step 2: Convert to fraction form
   8,436,059.25/12,598,906.88 = 12,598,906.88/x
3. Step 3: Cross multiply
   8,436,059.25x = 12,598,906.88 × 12,598,906.88
4. Step 4: Simplify right side
   8,436,059.25x = 158,732,454,444,922.25
5. Step 5: Solve for x
   x = 158,732,454,444,922.25/8,436,059.25
6. Step 6: Final answer
   x = 18,815,948.27